public override ISqlNode VisitVariable(SqlVariableNode n)
{
// @ variables are only used as parameters in parameterized queries, so if they are defined
// at all they must have been defined environmentally. Check if the symbol exists already. If
// so it's a parameter and we leave it as-is. Otherwise it's a misnamed variable (probably
// output from a parser of a different dialect) so we need to setup a translation rule if one
// doesn't exist already.
var info = Current.GetInfo(n.Name);
if (info != null)
{
return(n);
}
// Add this symbol with a translation rule
var originalSymbol = new SymbolInfo {
OriginalName = n.Name,
Translate = x => new SqlIdentifierNode(((SqlVariableNode)x).GetBareName(), x.Location)
};
Current.AddSymbol(n.Name, originalSymbol);
// Add a shadow symbol, with the correct name, just in case
Current.AddSymbol(n.GetBareName(), new SymbolInfo
{
OriginalName = n.Name,
CreatedFrom = originalSymbol
});
return(n);
}
public ISqlNode VisitVariable(SqlVariableNode n)
{
Append(n.Name);
return(n);
}
public virtual ISqlNode VisitVariable(SqlVariableNode n) => n;
public override ISqlNode VisitVariable(SqlVariableNode n)
{
return(base.VisitVariable(n));
}
public override ISqlNode VisitVariable(SqlVariableNode n)
{
Current.GetInfoOrThrow(n.Name, n.Location);
return(n);
}